Install Yeastar S412 Lite

Install Telephony Module

Yeastar S412 Lite is designed with 4 fixed on-board FXS ports (EXT1-4) and 4 reserved slots. You can insert different modules into the 4 reserved slots according to your needs. Yeastar S412 Lite supports installing up to 4 modules.

The optional modules are as below:

  • S2 Module
  • O2 Module
  • B2 Module
  • GSM Module
  • 3G Module
  • 4G Module
Note: Before installing the module, check if the module is clean and intact.
  1. Loosen the screws at the bottom of the device and remove the upper cover.

  2. Insert the module to the Module Slot.
    • T_Slot1: For S2 module only.
    • T_Slot2: For S2 module only.
    • T_Slot3: For O2 module, B2 module, GSM module, 3G module, and 4G LTE module.
    • T_Slot4: For O2 module, B2 module, GSM module, and 3G module.

  3. Follow the instructions to insert a SIM card on the GSM/3G/4G module.
    Note: Skip this step if no GSM/3G/4G module is installed.

  4. Close the cover and fix the screws.

  5. Rotate the antenna into the Antenna Socket.
    Note: Skip this step if no GSM/3G/4G module installed.

Desktop Installation

  • Set 5~10cm gaps around the device for air circulation.
  • Avoid any heavy thing placed on the device.
  1. Place the PBX on a steady platform.
  2. Remove the adhesive backing paper from the rubber feet.
  3. Turn over the device and attach the supplied rubber feet to the recessed areas on the bottom at each corner of the device.